I just put a gauge on my HO, fired it up. It won't really idle anymore with the stick all the way back. I have to push to stick about 3/4" forward to maintain 700-800 idle. Smells real rich, and I have been having a nasty soot problem.
So, I fired it up and the gauge reads 36psi at idle. Romp on it, and it goes up a few pounds, so it looks like the regulator is adjusting somewhat.
The question is, what should the idle FP be? The book says 6psi running?